Observed behaviour

When using a spell, the arm is rendered in a way that First-person Model doesn't seem to recognize. This causes both the first and third person version of the arm to render, showing two arms and books.

Expected behaviour

Only one arm is shown when casting spells.

Steps to reproduce

1. Install https://www.curseforge.com/minecraft/mc-mods/first-person-model
2. Use a spell that has a cast time/animation (tested with poison arrow 1 and Flimsy Journal)

Server Type

Dedicated Server

Crashlog

No response

Iron's Spells N Spellbooks version

1.20.1-1.2.1

Forge version

1.20.1 - 47.1.3

Other mods

I am using a decently sized modpack, however the only mods that I believe to be related to this issue are:
FirstPersonModel Mod - 2.2.3-mc1.20
NotEnoughAnimations Mod - 1.6.4
Possible Issue (unsure if it matters, but I'll add it here anyway):
Better Combat - 1.7.3+1.20.1

this would be an issue with playeranimator, a library we use, not us. report it to them https://github.com/KosmX/minecraftPlayerAnimator/issues